Evolution of Life 2015: Ammonite, Mongolia, 2015, 1oz, .999

$1,780

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The evolution of life is celebrated with a new series featuring an Ammonite fossil in sensational high-relief. Ammonites superficially resemble snails and nautilus, the marine creatures were however more closely related to octopus and squid.

Gas-filled chambers within the shell allowed  them to move up and down the water  column in search of prey and to avoid predation by Mosasaurs. The striking, red-gilded reconstruction of a partially excavated Ammonite represents the Devonian Period which lasted from 419-359 million years ago.

While fossils of the Ammonite’s head and tentacles are extremely rare, their shells are among the most abundant fossils and can in fact aid in determining the age of the rock they are found in.

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